Printing device



S. H. PAXTON.

PRINTING DEVICE.

APPLICATION FILED MAY29,1919.

Patented Mar. 22, 1921.

Z SHEETSSHEET 1.

S. H. PAXTDN.

PRlNTlNG DEVICE.

APPLICATION FILED MAY 29, 1919.

1,372,085. Patented Mar. 22, 1921.

Z SHEETS-SHEET 2.

may rotate in one direction only when at adapted to-beapplied to the topofthe frame parts shown in NT OFFICE.

SHERMAN rLrAx'roN, or sea. PAUL, MINNESOTA.

PRINTING nnvron.

To all whom it may concern ciently and automatically upon an ordinary roll paper dispensing rack and also serve as an efl'ective manually operative printing press. a

A! further object is to organize such a printing mechanism so that the printing roll tached to a rack and reciprocate when operated by hand.

Afurther'object is toadapt such a device to print upon irregular surfaces of an ordinaiy roll of paper; a

In the drawings Figure 1 is'a perspective view of a roll paper rack of ordinary construction; with my printing press attached thereto; Fig. 2 is a plan of the clamp and hanger for attaching the press to the rack. Fig. 3 is an elevation of the same. Fig. 4 is a perspectiveview of the press with a handle formanual operation; Fig. 5 is a View of the printing roller with a portion ilzil iereof sliiown in sectipns on the ling 5-15 0% i l 4. i 6 is a ra "enta etai o g g Fig. 5, l lll h th detent out of en gement. a a

Re erring to the drawings, A indicatesa rolhpaper racket ordinary construction, B the clampand hanger for attaching the press tothe rack, G the p-ressproper and D a handlefor manually operating the press.

The clamp B consists olia" body portion 10 of the raclrA by means of theclamping ears 11 and thumb screw 12. The ears 11 are turned down substantially at right angles to thebody; 10, their vertical edges 13 forming the clamping contacts for the frame. A U-shaped hanger 14 is journaled between the inner surfaces of the cars 11 upon the rod 15, and a coiled spring 16 is mounted upon said rod 15 with its looped center 17 bearing upon the upper surface of the body portion 7 Specification of letters Patent.

spring 27 is placed of the'side22 of. the casing 22.

the spring Patented Mar. 22, 1921.

Application filed May 29, 1919i Serial-No; 300,674.

10 of the clamp, while: the projecting ends 18 are held in grooves in the cross bar 19 of the hanger. Upon the lower surface of this bar 19' of the hanger a projection 20 is formed with athreaded' pintle2h to furnish a mountingxfor the press C hereafter de scribed. i

The press C consists of a heavy metallic casing 22* in which are journaled an inking roller 23, a distributing roller 24 and a printing roller 25. The inking and distributing rollers 23 and- 24 are mounted and cooperate with the printing roller 25 in the usual manner.

A cavity 26 is formed in onerend of the printing roller25, and in this cavity a coiled about the axial pin 28 which is rigidly attached at its inner end to theroller 25. The inner end of said spring 27 is also fixed in'the roller 25 While. its outer end is fixed in a disk 29,;which is normally free! to rotate upon said pin 28, with its outer surface adjacent to the inner surface on my device is used for automatic work upon the paper rack A this disk 29 revolves freely with theprinting roller 25. I have, however, provided means for causing thezspring 27 to returnlthe roller to initialposition after each manual printing stroke by the following means: A nippleBOis arranged in the side on the detent, to presss'aid detent inwardly,-

andithe disk29 is perforated at 34 to receive the inner end of the detent when it is allowed to respond to the tension of said spring. When the detent 31 is depressed by casing and held againstrevolution by the registration of the pin in perforation 34 (see Fig. 5) so thateaohi printing revolution of the roller 25 is against the action of the spring 27, but when the pressure of a manual prlnting strolreis released the roller 25 is returned to initial position by said: spring 27. When it is: desired to have the! printing 33 the disk 29 isfconneoted to the roller 25 revolve continuously in one direction, as inautomatic printing upon the paper roll, the detent 31 is drawn out by means ofi cross-head 32 and turned so that said cross-head is allowed to rest in the grooves 35 in the outer end of the nipple 30 (see Fig. 6), and when it is desired to connect the the hanger in Fig. 2.

that the pin 44 the internally the printing roller hold said disk against rotation. When the detent is in this position it will be noted (which attaches the inner end of the spring 27 to the roller) and the screw 45 (which attaches the other end of said spring to the disk 29) are extended to impinge against each other after a predetermined rotation of the roller 25, to limit its movement when the spring-27 is operative (see Fig.5);

To facilitate attaching and removing the printing press C from the clamp 13 I have formed at the base of one of the legs of the hanger 14 a notch 37, and in one of the ears 11 a perforation 38 (see Figs. 2 and 3), and when it is desired to either attach or remove the press the hanger is turned upwardly against the tension of the spring 16 until the notch37 registers with the perforation 38. Then the pin 39 may be inserted through said perforation and'notch to rigidly hold in line with the clamp asshown When in this position the press may be readily connected to the hanger by threaded nipple 40 formed in one end of the press casing which may be attached either to the screw thread upon the nipple 21 of the hanger 14 or upon a similar threaded pin 43 at the end of the handle D. When the press is used in connection with the rackA it is important to be observed that the threaded pintle 21 and nipple 40 are not to be turned into locking position, because the press must be left free to swivel on the nipple 21 so as to allow transverse play of the press when, as is frequently the case, the roll of paper on which the printing is to be done'is irregularly rolled or for other reasons presents an uneven surface to After attaching the press C to the hanger .14 as above described the pin 39 is withdrawn from the perforation 38 and notch 37 to permit the printing roller 25 of the press to rest upon the surface 42 of the paper upon the rack A. The type of the printing roller *is held in operative position upon the paper both by gravity and the tension of the spring 16, and transverse irregularities in the paper roll are compensated for by the swiveling of the nipple 40 upon the threaded pintle 21. When my printing'device is adjusted upon the wrapping paper rack as shown in Fig. 1

the movement of the wrapping paper as it is unrolled by the attendant rotates the printing roller 25, causing the inked type thereon to press upon the surface of the paper and imprint the text carried by said roll upon the surface of such paper, it being understood that during this operation the detent 31 is in the position shown in Fig. 6, to permit continuous rotation of the printing roller 25 in one direction.

When the handle D is attached to the press for manual operation the detent 31 must be adjusted to the position shown in Fig. 5, and the printing roller is then rolled across the surface of the paper or other article to be printed, after which the roller is lifted from paper and permitted to return to the initial position by the action of the spring 27.

Having described my invention, what I claim as new and desire to protect by Letters Patent, is:

1. In a printing device of the class described a clamp adapted to be mounted upon a roll-paper rack, a hanger pivotally suspended on said clamp, a press swiveled on said hanger to permit transverse play on a paper roll, a spring between said hanger and clamp adapted to hold said press against the paper roll and means for rigidly connecting said hanger with said clamp.

2. In a printing device of the class described a clamp adapted to be secured to a roll-paper rack, a hanger pivotally mounted in said clamp, a printing press suspended from said hanger, a spring interposed between the clamp and hanger and adapted to hold said press against a paper roll and a swiveled joint comprising loosely united threaded members, connecting the press with the hanger to permit transverse play of said press on the roll of paper.

3. In a printing device of the class described, a casing, a train of rollers mounted and rotatable in said casing in serial peripheral contact with each other, one 0 said rollers being formed with a cavity in its end, a disk in said cavity loosely mounted to revolve on the same axis with said roller, a coil spring also in said cavity attached at one end to said roller and at the other end to said disk, and a spring controlled detent mounted in the casing and adapted to engage said disk and hold the same against rotation.

In testimony whereof, I have signed my name to this specification in the presence of two subscribing witnesses. 

